FailZero FailZero Bolt Carrier Group With Hammer Completely Assembled EXO Coated This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers.
All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance.
Today's best price, $140.70 at BattleHawk Armory, is the lowest price we have recorded for this item from any dealer since Aug 4.
We record each dealer's price whenever it changes, 4 dealers for this item. These are listed prices, and a dealer may not have had stock at every one of them.
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